Error::__clone Clone the error &reftitle.description; private voidError::__clone Error can not be cloned, so this method results in fatal error. &reftitle.parameters; &no.function.parameters; &reftitle.returnvalues; &return.void; &reftitle.errors; Errors are not clonable. &reftitle.changelog; &Version; &Description; 8.1.0 Error::__clone is no longer final.